STRIATED MUSCLES AND SCENT GLANDS ASSOCIATED WITH THE VAGINAL TRACT OF THE RABBIT

Background: Despite the importance of the rabbit (Oryctolagus cuniculu s) in reproductive research, no comprehensive account of the anatomica l organization of the female reproductive tract is presently available . Methods: Based on gross dissection and on the electrical stimulation of striated muscles in 10 domestic female rabbits, it was the aim of this study to help fill this gap by describing the origin, insertion, and general action of muscles associated with the vaginal tract and wi th associated scent glands. Results: Compared with the better-studied rat or cat, the long vaginal tract of the rabbit is characterized by a well-developed and complex musculature, The bulbospongiosus, ischioca vernosus, constrictor vestibuli, and constrictor vulvae muscles, poorl y developed or absent in the female rat or cat, were particularly cons picuous, Scent glands, including the newly identified preputial glands , were also a distinctive feature, Conclusion: These structures may re present specializations underlying the rapid copulation, rapid parturi tion, and well-developed chemical communication characteristic of the reproductive efficiency of the rabbit. (C) 1997 Wiley-Liss, Inc.